Below is the above image, when using live trace with a threshold of 63. You can see the difference between that image, and the image below which has been used with a threshold of 178. Much more of the detail has been lost, making the image almost unrecognisable.
The live trace tool converts the image from being a Bitmap to a Vector image, this means it no longer relys on pixels as a setup, it is now made up from mathematical formulas allowing for the image to be resized and editing without compromising the quality of the image.
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